My 33 weeker. Seeking advice 😐

Hey all. My daughter Madison was born 7 weeks early on January 19th. She’s been in the NICU since. She is 3 weeks old now and still not consistent on taking feedings by mouth. She has made progress though. Going from 2-5ml to 25-28ml and today she finished her whole bottle (45ml) but tonight she only took 18ml. It seems that at night time she has no interest really in the bottle but during the morning/day she has enough energy to try. I’m concerned that she should have the hang of it by now and starting to get discouraged. She wasn’t overly small at birth either for a 33 weeker. She was 4lbs 11oz and dropped down to 4lbs 3oz and is

now 5lbs 5oz. Has anyone had a 33 weeker? Or close? Please share experiences! I just want my little one home. but I also know she’s in the best hands at the NICU and I definitely want her to be 110% when she comes home